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An automated device for the digitization and 3D modelling of insects, combining extended-depth-of-field and all-side multi-view imaging

Ströbel, Bernhard ; Schmelzle, Sebastian ; Blüthgen, Nico ; Heethoff, Michael (2018)
An automated device for the digitization and 3D modelling of insects, combining extended-depth-of-field and all-side multi-view imaging.
In: ZooKeys, 759
doi: 10.3897/zookeys.759.24584
Artikel, Bibliographie

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Kurzbeschreibung (Abstract)

Digitization of natural history collections is a major challenge in archiving biodiversity. In recent years, several approaches have emerged, allowing either automated digitization, extended depth of field (EDOF) or multi-view imaging of insects. Here, we present DISC3D: a new digitization device for pinned insects and other small objects that combines all these aspects. A PC and a microcontroller board control the device. It features a sample holder on a motorized two-axis gimbal, allowing the specimens to be imaged from virtually any view. Ambient, mostly reflection-free illumination is ascertained by two LED-stripes circularly installed in two hemispherical white-coated domes (front-light and back-light). The device is equipped with an industrial camera and a compact macro lens, mounted on a motorized macro rail. EDOF images are calculated from an image stack using a novel calibrated scaling algorithm that meets the requirements of the pinhole camera model (a unique central perspective). The images can be used to generate a calibrated and real color texturized 3Dmodel by ‘structure from motion’ with a visibility consistent mesh generation. Such models are ideal for obtaining morphometric measurement data in 1D, 2D and 3D, thereby opening new opportunities for trait-based research in taxonomy, phylogeny, eco-physiology, and functional ecology.

Typ des Eintrags: Artikel
Erschienen: 2018
Autor(en): Ströbel, Bernhard ; Schmelzle, Sebastian ; Blüthgen, Nico ; Heethoff, Michael
Art des Eintrags: Bibliographie
Titel: An automated device for the digitization and 3D modelling of insects, combining extended-depth-of-field and all-side multi-view imaging
Sprache: Englisch
Publikationsjahr: 2018
Verlag: Pensoft Publishers
Titel der Zeitschrift, Zeitung oder Schriftenreihe: ZooKeys
Jahrgang/Volume einer Zeitschrift: 759
DOI: 10.3897/zookeys.759.24584
URL / URN: https://doi.org/10.3897/zookeys.759.24584
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Kurzbeschreibung (Abstract):

Digitization of natural history collections is a major challenge in archiving biodiversity. In recent years, several approaches have emerged, allowing either automated digitization, extended depth of field (EDOF) or multi-view imaging of insects. Here, we present DISC3D: a new digitization device for pinned insects and other small objects that combines all these aspects. A PC and a microcontroller board control the device. It features a sample holder on a motorized two-axis gimbal, allowing the specimens to be imaged from virtually any view. Ambient, mostly reflection-free illumination is ascertained by two LED-stripes circularly installed in two hemispherical white-coated domes (front-light and back-light). The device is equipped with an industrial camera and a compact macro lens, mounted on a motorized macro rail. EDOF images are calculated from an image stack using a novel calibrated scaling algorithm that meets the requirements of the pinhole camera model (a unique central perspective). The images can be used to generate a calibrated and real color texturized 3Dmodel by ‘structure from motion’ with a visibility consistent mesh generation. Such models are ideal for obtaining morphometric measurement data in 1D, 2D and 3D, thereby opening new opportunities for trait-based research in taxonomy, phylogeny, eco-physiology, and functional ecology.

Sachgruppe der Dewey Dezimalklassifikatin (DDC): 500 Naturwissenschaften und Mathematik > 570 Biowissenschaften, Biologie
Fachbereich(e)/-gebiet(e): 10 Fachbereich Biologie
Hinterlegungsdatum: 02 Aug 2024 12:33
Letzte Änderung: 02 Aug 2024 12:33
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